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Kamila
Posting for 6+ monthsSynthesis Roma 510AC Integrated Valve/ Tube Amplifier
Stepps, Glasgow
£2,200
- Posted
- 12 days ago
Description
IF YOU CAN SEE THIS LISTING THEN THE ITEM IS AVAILABLE
Synthesis Roma 510AC Integrated Amplifier, built in Italy and in true mint condition and perfect working order. 80W per channel! This is 12 months old and flawless. Power to drive any speakers. Remote control is aluminium and never used. I've changed my system to something smaller and it would be good to see this beautiful amplifier go to someone who would appreciate it's clarity and quality.
Current retail price £4399. Selling for £2200, saving 50% over new.
Tech Specs
- Power Stage: Matched pair KT88/6550, per-channel
- Input Stage: 1 x ECC83/12AX7, per-channel
- Driver Stage: 1 x ECC99/12BH7, per-channel
- Input impedance: 50kΩ
- Input sensitivity: 300mV for max. power
- Power stage configuration: Pentode Configuration
- Power output: 80W RMS Class AB (6Ω)
- Frequency response: 20Hz - 20kHz - 0.5dB
- Signal/Noise ratio: > 90dB "A" weighted
- Analogue Inputs: 5 x Line
- Outputs: Pre Out (variable)
- Remote Control: Included for volume and source selection
- Power Consumption: 280w max.
- Dimensions: (w,d,h): 410 x 330 x 260mm
- Weight: 25.0kg
Collect in person or by organising your own courier. It is double boxed with excellent original packaging to keep everything safe in transit. All packaging, remote control, and paperwork included.
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Product Description
Synthesis Roma 510AC valve amplifier is the most powerful integrated model in the Roma range, featuring KT88 rather than EL34 as in the Roma 96 DC+ and Roma 753AC models, and delivers 80W per channel with incredible musicality.
This model features a pair of matched KT88 output valves are driven by an EC88 preamp valve. The output transformers are made in-house and use modern materials so can outperform many of the older designs.
Roma is created by Synthesis, who specialise in high-end valve equipment with modern Italian design. Experience music with all of the emotion, for an incredibly moving experience.
High end design
The 510AC makes sound quality a priority. The ECC82 dual triode preamp valves have a DC stabilised heater supply. Valves heaters normally have a 6.3V AC supply, however this can introduce hum and noise. Consequently, the 510AC has a well smoothed DC supply.
Another issue with amplifier design can be mechanical and electrical noise from transformers. To avoid this the transformers have a very rigid mounting. Additionally, all the connectors are gold plated to reduce resistance and tarnishing.
Finally, only premium components are used resulting in a purity of voice that is simply stunning. So why is the output transformer important?
Specially designed output transformers
Valves work by heating a cathode. This then emits electrons. Inside the glass envelope of the valve, an anode is used to attract the electrons. This has a positive charge, in the order of several hundred volts. To control the current flow a negatively charged grid is inserted between the cathode and anode. Varying the signal on the grid creates a correspondingly larger voltage on the output.
The output transformer provides the interface between the output of the KT88’s and the speaker. Modern materials have improved the performance of transformers resulting in better frequency response and improved reliability. For instance, the core is now made of high grade iron silicon and the quality of the copper wire is much better with lower resistance and higher purity.
Ad ID: 1492456586
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